Dry placer machine



March 27, 1934. J Y I 1,952,662

DRY PLACER MACHINE Filed Dec. 11, 1951 5 Sheets-Sheet 1 Inventor r70); 3 F 711 a e/15v A ilomey March 27, 1934. J. B EMBERLY I I DRY PLACER MACHINE Fil-ed Dec. 11, 1931 5 Sheets-Sheet 2 lr weninr Z/Zse OZ 3 @56 51 wznop A llorney March 27, J 1934.

J. B. EMBERLY DRY PLACER MACHINE .Fiied Dec. 11, 1931 5 Sheets-Sheet s I nvenior 15 a 5 128,;

A llorney March 27, 1934.

DRY PLACER MACHINE Fil ed Dec. 11, 1931 J. B. EMBERLY 1,952,662

5 Sheets-Sheet 4 /3 45' M 11 11 M11 n ll I nvenlor 'Js-e v 2 ByQM March 1934- J. B. EMBERLY DRY PLACER MACHINE 5 Sheets-Sheet 5 Filed Dec.

Inuenior 1756179; 5? @367 By W fl llofney Patented Mar. 2?, E934 onus-n s'mrss rarsnr QFFEQE pay rmoaa mom .lioseph B. Ember-ly, Phoenix, Ariz., assignor of aha-fourth to-Eric M. Grimsley, lLos Angelles,

Application December in, 1931, Serial No. 580,440

. 1 Claim. (or. 83-46) This invention relates to a dry placer machine, the general object of the invention being to provide means for recovering gold and the like from placer sands and gravel located in desert sections where water for sluicing or dredging is not available. Y

' This invention also consists in certain other features of construction and in the combination andarrangement of the several parts to be here- 10 inafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like or corresponding parts throughout the several views, and in which:--

Figure 1 is an elevation of the invention. Fig. 2 is a top plan view thereof. Fig. 3 is an end view. Fig. 4 is a section on'line 4-4 of Fig. 3. Fig. 5 is a vertical sectional view through the cleaner. Fig. 6 is a section on line 66 of Fig. 5. Fig. 7 is an-end view of the concentrator table. Fig. 8 is a plan ,view thereof. Fig. 9 is a section on line 99 of Fig. 8. Fig. 10 is a section on line 10-10 of Fig. 8. In these drawings, the letter A indicates generally a supporting frame of the apparatus, and

the numeral 1 indicates a rotary cylindrical screen supported in the frame by the rolls 2 which are so arranged as to support the screen in a position slightly inclined to the horizontal as shown in Fig. 3 and such screen is provided with longitudinally extended internalfianges 3 causing the ma- .terial to travel upwardly with the screen during the rotary movement thereof, until the material reaches a certain point whenit will fall backinto the lower part of the screen again, thus agitating and breaking up the material into small particles,

the smaller ones of which will pass through the perforations of the screen, while the larger ones will passthrough the discharge 4 at the lower end of the screen into the' chute 5 from which they will pass to the conveyor 6 which conveys such material to'a dump or the like.

The'material is introduced into the upper end of the screen'by means of the hopper '7 and the fine material passes through the perforations of I the screen and will drop into the hopper 8 which discharges the material into the buckets of an elevator 9 which-conveys the material into a chute 10 which discharges into the upper end of a vertical cylinder 11, the lower end of which is connected to the upper end of a housing 12.

A corrugated lining 13 is provided for the cylinder l1 and a shaft 14. passes through the center of the cylinder and depends into the housing 12,, the shaft being supported at the center of the cylinder and housing by the spiders 15.

' Two pairs of vertically arranged paddles 16 are carried by the shaft and are located in the cylinder, one pair being arranged at right angles to the other as shown in Figs. 5 and 6, and a pulley 1'7 is fastened to the lower end of the shaft. A screen carrying frame 18 is diagonally arranged in the upper part of'the housing for receiving the material dropping from the cylinder and the material too large to pass through the screen discharges through the chute 19. The material to passing thru the screen will drop upon the screen carried by the frame 20 located below the frame Y 18 and extending in a diagonal direction to a chute 21 connected to that side of the housing 12 opposite that side to which the chute 19 is con- 25 nected.

These frames 18 and 20 are supported for vi- I bratory motion as shown generally at 22 and such motion is imported to the framesthrough means of the eccentrics 23 on the shaft 24 and the rods 25 connecting the straps of the eccentrics to parts of the frames as shown in Fig. 5.

The material passing through the lower screen carried by the frame 20 will discharge through the bottom chute 26 of the housing 12, onto the con- 86 1 veyor 27 whichelevatesthe material to the chute 28 which discharges the material on the conce trator table 29. 7

The material passing through the chute 19 will discharge into the conveyor 6 and the material passing from the chute 21 is carried by the chute 21' into the buckets of the elevator 9, so that this material is'carried back into the cleaner cylinder 11.

The parts can be driven in any suitable manner though the drawings show a shafting 30 and 30' driven from a motor M, the shafting 30' being connected by gears 31 to the cylinder or screen 1, the shafting 30 being connected by the belt and pulleys-shown generally at 32 to a stub shaft 33 which is connected by the gears 34 to the upper shaft of the elevator 9 and a belt 35 passes over a pulley 36 on the shaft.30 and the pulley 17 onthe shaft 14 located in the cylinder and housing.

Belt and pulleys shown generally at 37 drivethe gears 38 for operating the elevator 2'7 and the shaft 39 is driven by; the belt and pulleys shown generally at 40 from the shafting 30 and said shaft has cams 41 thereon for vibrating the bottom of a table 29. It will of course be understood that other means for operating the parts may be provided if desired.

The table 29 is made in the form of a box with its top open and light wires 42 are stretched across the top with one or more thicknesses of silk or other suitable cloth 43 passed under and over the wires to form grooves 44. A set of riiile forming bars 45 are arranged on the top of the table, the bars extending diagonally and being arranged at right angles to the grooves as shown in Fig. 8.

The bottom of the table is made of sheep skin or other suitable material, shown at 46, drawn tight about the bottom of the frame in the manner of a drum and at or near the center of the bottom is fastened a solid block of rubber or the like, shown at 47 which is engaged by the double cam 41.

From the'foregoing it will be seen that the gravel and compact masses of sand and sediment are fed into the hopper 7 from which the material passes into the screen and all large material too large to pass through the perforations of the screen, will pass from the discharge spout onto the conveyor 6, which conveys it to the dump. The compact masses of sand and gravel and other material will be broken up by being agitated by the rotary screen and its flanges 3 and the material passing through the perforations of the screen will drop into the pan or hopper 8 from which it passes onto the elevator 9 which conveys the material into the top of the cylinder 11 where it is engaged by the paddles 16 which throw the material against the corrugated surface of the cylinder, which causes the material to be broken into fine particles releasing the free 5011;: and other valuable metal, which it may con- The material dropping from the cylinder 11 will be acted on by the screens in the frames 18 and 20 and the material too large to pass through the first screen falls upon the conveyor 6 and the material passing through the screen will drop upon the lower and smaller screen. The material too large to pass through this lower screen is returned to the cleaner as before stated. All fine material which passes through the lower screen is carried by the second elevator 27 to the chute 28 which deposits upon the concentrating table.

The vibrating cams 47 under this table impart a rapid motion to the table bottom and create an alternating draft and suction. The fine particles of gold being the heavier will settle in the first and second grooves and the second concentrate (iron) will be caught in the lower grooves according to its specific gravity and these materials will drop from one side of the table. The sand and other lighter material will be carried by the raised riflles 45 to the opposite side of the table into the chute 48 which delivers the tailings onto the conveyor 6.

The table is inclinedly arranged as shown in Fig. 1 with the material dropping from the chute 28 drops upon the high part of the table. The grooves 44 having a two-way pitch, the alternating draft, and suction created by the vibrating bottom 46 keeps the values in motion towards the ends of the grooves where they are run into a suitable receptacle, while the tailings are carried across the table by the riflles to the chute 48. The table is provided with means whereby the pitch can be adjusted to meet varying conditions. The concentrates are caught in the grooves on the table, and discharged on one side, while the sand and other waste is discharged by the raised riflles on the opposite side of the table as shown in Fig. 2.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily appreciated.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts provided that such changes fall within the scope of the appended claim.

Having thus described my invention, what I claim as new is:--

A disintegrater comprising a vertically arranged cylinder having an inlet at its upper end, a vertically arranged housing having its upper end connected to the lower end of the cylinder, a vertically arranged shaft rotatably arranged in the cylinder and part of the housing, upper and lower arms extending horizontally from the shaft, with the upper arm in vertical alignment with the lower arm, said arms being located in the upper part of the cylinder, vertically arranged beater plates connected to the pairs of upper and lower arms at the outer ends of said arms, a corrugated lining for the cylinder, the corrugations of which extend vertically and against which the beater plates throw the material engaged by said plates, screen means in the housing for receiving material dropping from the cylinder and means connected with the lower end of the shaft for rotating the same.

JOSEPH B. EMBERLY. 

